/*
 * TabDelimitedFormatter.java
 *
 * Copyright (C) 2002-2006 Alexei Drummond and Andrew Rambaut
 *
 * This file is part of BEAST.
 * See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership and licensing.
 *
 * BEAST is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 *  BEAST is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with BEAST; if not, write to the
 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
 * Boston, MA  02110-1301  USA
 */

package dr.inference.loggers;

import java.io.PrintWriter;

/**
 * A class that writes a log in tab delimited format.
 *
 * @version $Id: TabDelimitedFormatter.java,v 1.5 2005/05/24 20:25:59 rambaut Exp $
 *
 * @author Andrew Rambaut
 * @author Alexei Drummond
 */
public class TabDelimitedFormatter extends LogFormatter {

	boolean outputLabels = true;

    public TabDelimitedFormatter(PrintWriter printWriter) {
	
		super(printWriter);
	}

    public TabDelimitedFormatter(PrintWriter printWriter, boolean labels) {

		super(printWriter);
        outputLabels = labels;
	}

	public void startLogging(String title) {
		// do nothing
	}
	
	public void logHeading(String heading) {
        printWriter.println(heading);
        for (int i = 0; i < heading.length(); i++) {
            printWriter.print("=");
        }
        printWriter.println();
        printWriter.flush();
	}
	
	public void logLine(String line) {
		printWriter.println(line);
		printWriter.flush();
	}
	
	public void logLabels(String[] labels) {
		if (outputLabels) {
            if (labels.length > 0) {
                printWriter.print(labels[0]);
            }

            for (int i = 1; i < labels.length; i++) {
                printWriter.print('\t');
                printWriter.print(labels[i]);
            }

            printWriter.println();
            printWriter.flush();
}
	}
	
	public void logValues(String[] values) {
		
		if (values.length > 0) {
			printWriter.print(values[0]);
		}
	
		for (int i = 1; i < values.length; i++) {
			printWriter.print('\t');
			printWriter.print(values[i]);
		}
		
		printWriter.println();
		printWriter.flush();
	}
	
	public void stopLogging() {
		// Nothing to do...
	}
		
}
